package ddd.ajava.chapter4.question2;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;


@Target({ElementType.TYPE,ElementType.FIELD})//类、变量可以标注
@Retention(RetentionPolicy.RUNTIME)
public @interface Label {
	public String fieldName() default "";
}
